Legal Question in Criminal Law in California

That depends on what they were charged with and what happened before and during the traffic stop. You haven't given us enough information.

If you're asking whether the car's other occupants are shielded because they weren't the ones the police were looking for, the answer is no. But they may have other defenses available to them, and the government's case against them could be quite weak.

Each person in the car should consult with a local attorney about his or her specific situation.

Good luck.